1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // |
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27 | // File name: RadmonGeneratorUniformPlane.cc |
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28 | // Creation date: Oct 2005 |
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29 | // Main author: Riccardo Capra <capra@ge.infn.it> |
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30 | // |
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31 | // Id: $Id: RadmonGeneratorUniformPlane.cc,v 1.5 2006/06/29 16:16:33 gunter Exp $ |
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32 | // Tag: $Name: $ |
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33 | // |
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34 | |
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35 | // Include files |
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36 | #include "RadmonGeneratorUniformPlane.hh" |
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37 | #include "G4ParticleGun.hh" |
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38 | #include "G4RotationMatrix.hh" |
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39 | #include "Randomize.hh" |
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40 | |
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41 | void RadmonGeneratorUniformPlane :: ConvolveParticleGun(G4ParticleGun & gun) |
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42 | { |
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43 | G4double width(GetAttributeAsMeasure("Width", "Length", -1.)); // x |
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44 | if (width<0) |
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45 | { |
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46 | G4cout << "RadmonGeneratorUniformPlane::ConvolveParticleGun: \"Width\" not defined." << G4endl; |
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47 | return; |
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48 | } |
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49 | |
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50 | G4double height(GetAttributeAsMeasure("Height", "Length", -1.)); // y |
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51 | if (height<0) |
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52 | { |
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53 | G4cout << "RadmonGeneratorUniformPlane::ConvolveParticleGun: \"Height\" not defined." << G4endl; |
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54 | return; |
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55 | } |
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56 | |
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57 | if (!ExistsAttribute("Direction")) |
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58 | { |
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59 | G4cout << "RadmonGeneratorUniformPlane::ConvolveParticleGun: \"Direction\" not defined." << G4endl; |
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60 | return; |
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61 | } |
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62 | |
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63 | G4RotationMatrix rotation(GetAttributeAsRotationMatrix("Direction", G4RotationMatrix::IDENTITY)); |
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64 | |
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65 | G4double x((G4UniformRand()-0.5)*width); |
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66 | G4double y((G4UniformRand()-0.5)*height); |
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67 | |
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68 | G4ThreeVector offset(x, y, 0.); |
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69 | |
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70 | offset.transform(rotation); |
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71 | |
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72 | gun.SetParticleMomentumDirection(rotation * gun.GetParticleMomentumDirection()); |
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73 | gun.SetParticlePosition(gun.GetParticlePosition()+offset); |
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74 | } |
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75 | |
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76 | |
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77 | |
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78 | RadmonVGeneratorWithLabel * RadmonGeneratorUniformPlane :: New(void) const |
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79 | { |
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80 | return new RadmonGeneratorUniformPlane; |
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81 | } |
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